Impossible? No, just unlikely.
The fairly long California Ambigram displayed to the left is just one of many ambigrams that can be created on the FlipScript site.
The graphic to the left shows that ambigrams really are ambi-guous depending on how you read them. This design can be read as 'California' one way and also can be read as 'California' the other way.
Hover over the ambigram to see it spin.
All items in the FlipScript store are already displaying the California Ambigram. To see them, use the menu bar at the top to navigate to an item and your California Ambigram will magically appear!